Top 918 SaaS Companies in Ontario, Canada, May 2026

Toronto, Ontario, Canada

FP&A software provider

Toronto, Ontario, Canada

the leading AI platform for enterprise, suited to the needs of business, unlocking unprecedented ease-of-use, accessibility, and data privacy

Waterloo, Ontario, Canada

Developer of a cloud-based phone carrier services designed to connect the world by creating the exceptional and affordable phone service. The company's phone carrier services offer low-cost, international calling to over 230 countries and include unlimited texting, calling, and data services, enabling users to stay connected while travelling the world.

Toronto, Ontario, Canada

Xanadu is a leading photonic quantum computing and advanced artificial intelligence company headquartered in Toronto. Specializing in designing and integrating quantum silicon photonic chips into existing hardware systems, we are at the forefront of developing full-stack quantum computing solutions. By leveraging our innovative methods, we aim to address today's most challenging business dilemmas with unprecedented speed and efficiency. Our overarching goal is to pioneer the world's inaugural practical quantum computer. Our team is composed of exceptional individuals from diverse backgrounds who have converged to create something truly remarkable. For more information about our cutting-edge work, please visit us at xanadu.ai.

Mississauga, Ontario, Canada

We deliver integrated technology that spans your transit agency. Empowering you to move your communities is our #1 priority. We have been doing this for three decades by pioneering technology that is inclusive and reliable. We help you drive operational excellence and achieve your goals in safety and rider satisfaction. We understand your business and your riders. With useable tools that enhance their experience backed by powerful platforms and a focus on data management, we help you to retain riders and attract new ones. With our depth and breadth of experience focused solely on the transit industry, we are perfectly positioned to continue to anticipate what's on the horizon for transit, while delivering the integrated technology you need to thrive today. For more than 30 years we have been "here for the journey"​, evolving with our public transport customers around the world helping them to move people from point A to Z and everywhere in between. We are proud to be a Modaxo company, and passionate about moving the world's people.

Toronto, Ontario, Canada

Provider of a ticket selling platform for event organizers. The company's ticket-sales platform allows event organizers to embed a customizable Buy Now button to sell tickets on any website with no redirect to Universe.

Toronto, Ontario, Canada

As an industry pioneer, CMiC delivers complete and unified Financials and Project Management software solutions for construction and capital projects firms. CMiC’s powerful software transforms how firms optimize productivity, minimize risk and drive growth by planning and managing all financials, projects, resources, and content assets—from a Single Database Platform™. With customers throughout North America and overseas, CMiC serves one-quarter of ENR’s Top 400 Contractors and hundreds of small and mid-sized construction firms, from general and specialty contractors to heavy/highway and project owners. Over $100 billion in construction revenue is handled by CMiC annually.

Toronto, Ontario, Canada

Index Exchange is a global advertising supply-side platform enabling media owners to maximize the value of their content on any screen. As a trusted partner and ally, we connect leading experience makers with the world’s largest brands to ensure a quality experience for consumers. We’re a proud industry pioneer with over 20 years of experience accelerating the ad technology evolution. With our radically transparent business practices and dedication to total market efficiency, we’re committed to upholding the integrity of the programmatic ecosystem at large. Our global teams are dedicated to driving industry standards and building technology that delivers scale, efficiency, and long-term value for our customers and partners.

Toronto, Ontario, Canada

KOHO Financial Inc. is a Canadian fintech company that provides an application-based banking platform to simplify financial products and enhance money management for Canadians.

Toronto, Ontario, Canada

Karat is the world leader in technical interviewing and pioneer of the Interviewing Cloud.